Abstract
Polymer cymantrenecarboxylate complexes of rare-earth metals, [Ln(η2-O2CCym)2(µ-O2CCym)4Ln(ROH)4] n · mSolv (Ln = Nd (I), Gd (II), Dy (III), Ho (IV), Er (V, Va); R = H and Me; Cym = (η5-C5H4)Mn(CO)3; Solv is a solvent molecule), are synthesized by the exchange reactions between LnCl3 and CymCO2K in aqueous–organic media. Two types of coordination sites alternate in the polymer chain: Ln3+ ions coordinating water or methanol molecules and oxygen atoms of the carboxylate anions and Ln3+ ions coordinating oxygen atoms of the bridging and chelate carboxylate anions. In both cases, the coordination number of Ln is 8. Polymer [Dy4(O2CCym)12(HOCH2CH2OH)3.76(H2O)0.48] n · 3nTHF (VI) containing four crystallographically independent Dy3+ ions is obtained when ethylene glycol is used instead of methanol. The thermal behavior of complexes I–V in argon and magnetism of complexes II, III, and IV are studied. Complex III exhibits the properties of a single-molecule magnet with the chain structure (single-chain magnet) (CIF files CCDC 1410905 (I), 1410917 (II), 1410906 (III), 1410911 (IV), 1410918 (V), and 1410934 (VI)).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
